Sandwich mountings large series
Features / Applications
This range of mountings is suited to the suspension of heavy equipment and machinery and is extensively used as a flexible mounting for large medium speed diesel marine propulsion units. The ratio of compression to shear stiffness rates can be varied by incorporating rigid interleave plates in the rubber section, thereby enabling the overall suspension properties to be optimised to isolate the major disturbing vibrations.
The mountings are usually installed in a vee arrangement and when correctly positioned, afford a high level of vibration isolation but at the same time keep movements of the suspended equipment, under the action of external forces, to a minimum.
All dimensions in mm
 
 
 
 
 
Max Static
 
Max Static
 
 
Nominal
 
Nominal
 
Product
A
B
C
Interleaves
Compression
 
Compression
Weight
Rubber
Compression
 
Shear Stiffness
 
No.
mm
mm
mm
 
Load,
kN

Deflection, mm
kg
Hardness
Stiffness, kN/m
kN/m
 
 
 
 
 
 
 
45H
60H
 
 
 
Static
Dyn.
Static
Dyn.

17-1666
280
200
175
None
11.8
22
15
17.2
45
890
1000
130
150
60
1650
2170
250
325
17-1742
280
200
127
None
13.2
24.5
10
14
45
1600
1840
200
230
60
3000
3900
375
490
17-1783
460
268
109
None
46
84
8.5
29.8
45
5750
6610
600
690
60
10750
14000
1125
1460
17-2181
460
268
109
1
83
155
8
30.5
45
13500
15500
515
590
60
25500
33200
965
1255
17-0434
460
268
109
2
224
417
7.5
34
45
28750
33000
575
660
60
53900
70000
1080
1400
 N.B. In many cases, the horizontal shear stiffness rates will reduce under compressive forces, - see graphs overleaf.
 Vee arrangements 2 x 45 deg

 Product    

       No.
Rubber
Hardness
Max Static        Vertical Load  kN
Max Static Vertical Deflection, mm
 17-1666
45
20.5
21
60
38
21
 17-1742
45
24
14
60
46
14
 17-1783
45
69
11
60
132
11

  17-2181
45
147
10.5
60
280
10.5
 17-0434
45
310
10.5
60
584
10.5